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IT1050310B - METHOD FOR THE PREPARATION OF LOW DEGREE CELLULOSE ETHER - Google Patents

METHOD FOR THE PREPARATION OF LOW DEGREE CELLULOSE ETHER

Info

Publication number
IT1050310B
IT1050310B IT29616/75A IT2961675A IT1050310B IT 1050310 B IT1050310 B IT 1050310B IT 29616/75 A IT29616/75 A IT 29616/75A IT 2961675 A IT2961675 A IT 2961675A IT 1050310 B IT1050310 B IT 1050310B
Authority
IT
Italy
Prior art keywords
preparation
cellulose ether
low degree
degree cellulose
ether
Prior art date
Application number
IT29616/75A
Other languages
Italian (it)
Original Assignee
Shinetsu Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shinetsu Chemical Co filed Critical Shinetsu Chemical Co
Application granted granted Critical
Publication of IT1050310B publication Critical patent/IT1050310B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/205—Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • A61K9/2054—Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Epidemiology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Medicinal Preparation (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
IT29616/75A 1974-11-28 1975-11-25 METHOD FOR THE PREPARATION OF LOW DEGREE CELLULOSE ETHER IT1050310B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49138141A JPS5163927A (en) 1974-11-28 1974-11-28 Ketsugoseiryokonajozaihokaizaino seizohoho

Publications (1)

Publication Number Publication Date
IT1050310B true IT1050310B (en) 1981-03-10

Family

ID=15214950

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29616/75A IT1050310B (en) 1974-11-28 1975-11-25 METHOD FOR THE PREPARATION OF LOW DEGREE CELLULOSE ETHER

Country Status (11)

Country Link
US (1) US4091205A (en)
JP (1) JPS5163927A (en)
BE (1) BE836021A (en)
CA (1) CA1042878A (en)
CH (1) CH619719A5 (en)
DE (1) DE2553239C2 (en)
FR (1) FR2304353A1 (en)
GB (1) GB1479557A (en)
IT (1) IT1050310B (en)
NL (1) NL174554C (en)
SE (1) SE430165B (en)

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JPS54105223A (en) * 1977-12-29 1979-08-18 Yamanouchi Pharmaceut Co Ltd Coating agent for solid medicine
JPS5657719A (en) * 1979-10-16 1981-05-20 Asahi Chem Ind Co Ltd Preparation of pharmaceutical
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FI71750C (en) 1981-09-10 1987-02-09 Daicel Chem Process for producing an alkali salt of carboxymethyl cellulose ether.
US4369172A (en) * 1981-12-18 1983-01-18 Forest Laboratories Inc. Prolonged release therapeutic compositions based on hydroxypropylmethylcellulose
US4389393A (en) * 1982-03-26 1983-06-21 Forest Laboratories, Inc. Sustained release therapeutic compositions based on high molecular weight hydroxypropylmethylcellulose
JPS6032593U (en) * 1983-08-10 1985-03-05 株式会社　鶴見製作所 Removable submersible pump
JPS6032594U (en) * 1983-08-10 1985-03-05 株式会社　鶴見製作所 Removable submersible pump
US4609729A (en) * 1985-04-03 1986-09-02 The Dow Chemical Company Organosoluble C3 -C4 hydroxyalkyl ethyl cellulose ethers
US4650716A (en) * 1985-05-14 1987-03-17 Hercules Incorporated Novel salts of carboxymethylcellulose
US4689408A (en) * 1985-05-14 1987-08-25 Hercules Incorporated Method of preparing salts of carboxymethylcellulose
US4704285A (en) * 1985-11-18 1987-11-03 The Dow Chemical Company Sustained release compositions comprising hydroxypropyl cellulose ethers
US4820813A (en) * 1986-05-01 1989-04-11 The Dow Chemical Company Grinding process for high viscosity cellulose ethers
US5476668A (en) * 1990-08-24 1995-12-19 Shin-Etsu Chemical Co., Ltd. Base for film-coating pharmaceuticals and method for preparing same
DE4239553A1 (en) * 1992-11-25 1994-05-26 Wolff Walsrode Ag Carboxymethyl cellulose and its use in textile printing
DE4240168A1 (en) * 1992-11-30 1994-06-01 Bayer Ag New 2-tri:fluoro:methyl:thiadiazolyl-coumarin derivs - useful as fluorescent pigments for colouring transparent or translucent plastics
JPH08229103A (en) * 1995-02-27 1996-09-10 Shin Etsu Chem Co Ltd Method for fluidizing low-substituted hydroxypropyl cellulose and method for producing solid preparation
JP3408398B2 (en) * 1997-05-09 2003-05-19 信越化学工業株式会社 Method for producing low substituted hydroxypropylcellulose powder
JP3718341B2 (en) * 1998-05-12 2005-11-24 信越化学工業株式会社 Low substituted hydroxypropylcellulose and process for producing the same
PT1736144E (en) 1998-05-18 2016-02-10 Takeda Pharmaceutical Orally disintegrable tablets
US6261218B1 (en) * 1998-12-01 2001-07-17 The Dow Chemical Company Process and apparatus for making low molecular weight cellulose ethers
JP4044689B2 (en) * 1998-12-07 2008-02-06 信越化学工業株式会社 Method for producing low substituted hydroxypropylcellulose
KR20010100017A (en) 1998-12-30 2001-11-09 로날드 디. 맥크레이 Steam Explosion Treatment with Addition of Chemicals
US6413362B1 (en) 1999-11-24 2002-07-02 Kimberly-Clark Worldwide, Inc. Method of steam treating low yield papermaking fibers to produce a permanent curl
JP2000302802A (en) * 1999-04-21 2000-10-31 Shin Etsu Chem Co Ltd Method for forming low-substituted hydroxypropylcellulose particles
EP1054019A1 (en) * 1999-05-18 2000-11-22 Shin-Etsu Chemical Co., Ltd. Low-substituted hydroxypropyl cellulose
JP2001031701A (en) * 1999-05-18 2001-02-06 Shin Etsu Chem Co Ltd Low substituted hydroxypropyl cellulose
US6680069B1 (en) * 1999-11-09 2004-01-20 Shin-Etsu Chemical Co., Ltd. Low-substituted hydroxypropyl cellulose and process for manufacturing the same
JP4070402B2 (en) * 1999-11-09 2008-04-02 信越化学工業株式会社 Low substituted hydroxypropylcellulose and process for producing the same
JP3552160B2 (en) 2000-01-14 2004-08-11 信越化学工業株式会社 Method for forming low-substituted hydroxypropylcellulose particles
JP3576063B2 (en) * 2000-02-22 2004-10-13 株式会社ホギメディカル Soluble wound healing hemostatic cellulose fiber containing coagulation protein and method for producing the same
SE0003125D0 (en) * 2000-09-05 2000-09-05 Astrazeneca Ab Modified polymers
JP3595765B2 (en) * 2000-09-27 2004-12-02 信越化学工業株式会社 Base for dry direct hitting containing low substituted hydroxypropylcellulose
EP1319670B1 (en) 2001-12-11 2007-07-25 Shin-Etsu Chemical Co., Ltd. Low-substituted hydroxypropyl cellulose
JP4082656B2 (en) * 2002-03-04 2008-04-30 信越化学工業株式会社 Low substituted cellulose ether powder and method for producing the same
JP2003252749A (en) * 2002-03-04 2003-09-10 Shin Etsu Chem Co Ltd External base
KR100525252B1 (en) 2003-12-16 2005-10-31 삼성정밀화학 주식회사 Method for preparation of fine powdered Cellulose ethers
JP4128521B2 (en) * 2003-12-19 2008-07-30 信越化学工業株式会社 Gel sheet and method for producing the same
JP2005187376A (en) * 2003-12-25 2005-07-14 Shin Etsu Chem Co Ltd Low substituted cellulose ether-containing capsule and method for producing the same
EP1591106B1 (en) * 2004-04-28 2009-07-22 Shin-Etsu Chemical Co., Ltd. Film preparation and process for preparing the same
JP2007031407A (en) 2005-07-29 2007-02-08 Shin Etsu Chem Co Ltd Low-substituted cellulose ether-containing coating composition and film coating preparation with unpleasant taste masked
AU2006281730A1 (en) * 2005-08-16 2007-02-22 Dow Global Technologies Inc. Method for producing cellulose ether products with increased viscosity and fineness
JP4524254B2 (en) * 2006-01-27 2010-08-11 信越化学工業株式会社 Cosmetics containing low-substituted hydroxypropylcellulose
JP2007320886A (en) * 2006-05-31 2007-12-13 Isp Japan Kk Water-containing gel sheet and method for producing the same
US8519120B2 (en) * 2006-08-08 2013-08-27 Shin-Etsu Chemical Co., Ltd. Methods for producing a low-substituted hydroxypropylcellulose powder
JP5089287B2 (en) * 2006-08-08 2012-12-05 信越化学工業株式会社 Method for producing low substituted hydroxypropylcellulose powder
CN101125204A (en) * 2006-08-08 2008-02-20 信越化学工业株式会社 Solid preparation containing solid dispersion and method for producing the same
US8343548B2 (en) 2006-08-08 2013-01-01 Shin-Etsu Chemical Co., Ltd. Solid dosage form comprising solid dispersion
US8343547B2 (en) 2006-08-08 2013-01-01 Shin-Etsu Chemical Co., Ltd. Solid dosage form comprising solid dispersion
US9486446B2 (en) 2006-12-28 2016-11-08 Takeda Pharmaceutical Company Limited Orally disintegrating solid preparation
EP2210591B1 (en) * 2009-01-26 2016-03-30 Shin-Etsu Chemical Co., Ltd. Wet granulation tableting method using aqueous dispersion of low-substituted hydroxypropyl cellulose
JP5324302B2 (en) * 2009-04-22 2013-10-23 信越化学工業株式会社 High moldability, high fluidity, low substituted hydroxypropyl cellulose and solid preparation containing the same
US8260695B1 (en) * 2010-07-14 2012-09-04 Steven Rosenberg Secondary power meter for quarter-cycle power measurement and invoicing method
BR112013022418A2 (en) 2011-04-06 2016-12-06 Dow Global Technologies Llc A process for producing a particulate cellulose derivative, a particulate cellulose derivative, a method for improving the flowability and ease of dispersion of a particulate cellulose derivative in cold water, an aqueous composition, a capsule manufacturing process and a coating process. dosage
WO2014052213A1 (en) 2012-09-25 2014-04-03 Dow Global Technologies Llc Process for producing cellulose derivatives of high bulk density, good flowability and/or dispersibility in cold water as well as low solution color
EP2733154B1 (en) 2012-11-16 2015-06-17 Shin-Etsu Chemical Co., Ltd. Method for producing purified low-substituted hydroxypropyl cellulose
CA2913106A1 (en) 2013-05-21 2014-11-27 Takeda Pharmaceutical Company Limited Orally disintegrable tablet
EP2998340B1 (en) * 2014-09-22 2019-07-17 Shin-Etsu Chemical Co., Ltd. Method for continuously producing cellulose ether
TWI767923B (en) * 2016-07-27 2022-06-21 日商澤井製藥股份有限公司 Oral disintegrating tablet additive composition and manufacturing method thereof, and oral disintegrating tablet
KR102498064B1 (en) 2016-10-07 2023-02-10 신에쓰 가가꾸 고교 가부시끼가이샤 Low-substituted hydroxypropyl cellulose, production method thereof, and solid preparation
KR102469464B1 (en) 2016-10-07 2022-11-22 신에쓰 가가꾸 고교 가부시끼가이샤 Low-substituted hydroxypropyl cellulose, production method thereof, and solid preparation
JP7674284B2 (en) 2022-01-19 2025-05-09 信越化学工業株式会社 Personal care compositions and methods of use thereof
JP2025177522A (en) 2024-05-24 2025-12-05 信越化学工業株式会社 Method for producing low-substituted hydroxypropyl cellulose

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US1448091A (en) * 1922-02-02 1923-03-13 Eastman Kodak Co Purification of cellulose ether
US1510735A (en) * 1922-10-31 1924-10-07 Eastman Kodak Co Cellulose-ether purification
DE1212058B (en) * 1960-03-21 1966-03-10 Hercules Powder Co Ltd Process for purifying water-soluble, alkali-containing hydroxyalkyl cellulose ethers
US3251824A (en) * 1961-08-22 1966-05-17 Fmc Corp Method of preparing stable aqueous dispersion-forming cellulosic aggregates
US3451998A (en) * 1965-12-28 1969-06-24 Itt Rayonier Inc Neutralizing hydroxyalkyl cellulose
GB1142281A (en) * 1967-02-16 1969-02-05 Ici Ltd Production of hydroxyalkyl cellulose
DE1643888A1 (en) * 1967-09-15 1971-07-29 Dow Chemical Co Process for the production of cellulose ethers
JPS4819233B1 (en) * 1970-04-27 1973-06-12
JPS4917565B1 (en) * 1970-12-29 1974-05-01

Also Published As

Publication number Publication date
JPS5753100B2 (en) 1982-11-11
JPS5163927A (en) 1976-06-02
CH619719A5 (en) 1980-10-15
US4091205A (en) 1978-05-23
SE430165B (en) 1983-10-24
DE2553239A1 (en) 1976-08-12
FR2304353A1 (en) 1976-10-15
NL174554B (en) 1984-02-01
SE7512627L (en) 1976-05-31
CA1042878A (en) 1978-11-21
DE2553239C2 (en) 1983-01-27
NL7513391A (en) 1976-06-01
AU8691775A (en) 1977-06-02
NL174554C (en) 1984-07-02
GB1479557A (en) 1977-07-13
FR2304353B1 (en) 1979-06-15
BE836021A (en) 1976-03-16

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19931129